Function unwind_module_loaded

freebsd/arm/arm/unwind.c:223–248

* Handle the loading of a new module by populating a module_info for it. This * is called for both preloaded and dynamically loaded modules. */

 * is called for both preloaded and dynamically loaded modules.
 */
void
unwind_module_loaded(struct linker_file *lf)
{
	struct module_info *info;

	/*
	 * A module that contains only data may have no unwind info; don't
	 * create any module info for it.
	 */
	if (lf->exidx_size == 0)
		return;

	/*
	 * Find an unused entry in the existing list to reuse.  If we don't find
	 * one, create a new one and link it into the list.  This is the only
	 * place the module_list is modified.  Adding a new entry to the list
	 * will not perturb any other threads currently walking the list.  This
	 * function is invoked while kern_linker is still holding its lock
	 * to prevent its module list from being modified, so we don't have to
	 * worry about racing other threads doing an insert concurrently.
	 */
	if ((info = find_module_info(0)) == NULL) {
		info = create_module_info();
	}
	populate_module_info(info, lf);
}

/* Handle the unloading of a module. */
void